ES2219045T3 - REMOVABLE TOOL SUPPORT SYSTEM FOR FOOD PREPARATION FOR MIXERS, KITCHEN ROBOTS, GRINDERS AND SIMILAR EQUIPMENT. - Google Patents

Abstract

A food processing apparatus capable of being mounted on a separate base (20; 20¿; 40; 85; 120) that includes an electric motor (21) to form an electric apparatus of the mixer or kitchen robot type, comprising a container (22; 22¿; 42; 72; 122¿) capable of being mounted on said base, whose container is associated with a set (2; 2¿; 32; 62; 102¿) of tool holder for food processing having a support (15; 15¿; 31; 71; 115¿) detachably held in an opening (30; 34; 64; 130¿) made in the bottom of said container, a rotating shaft (19; 69; 119) which is mounted through said support, whose axis is supported at one of its ends in an application element (18; 38; 68; 118) that can be driven by the electric motor when said container is mounted on said base and, at the other end, a tool (24; 44; 74; 124¿) for food processing, characterized in that either the container entity (22; 22 ¿; 42; 72) comprises means (7; 7 ¿; 37; 67) interlocking that move in a plane transverse to the axis of the food processing tool to be applied to one (or some) conformation (or conformations) (4; 47; 77) of the support (15; 15¿; 31; 71) of tool in correspondence when said tool support has been applied axially to the container and taken to rest against a support area (14; 14¿; 48; 78; 114¿) provided around the opening of the container, said means being (7; 7 ¿; 37; 67) interlocking activated by a control button (3; 33; 63) mounted on the container; or the tool support assembly (102 ¿) comprises interlocking means (107 ¿) for applying to one (or some) conformation (or conformations) (104¿) of the container (122¿) in correspondence when said container has been applied axially to the tool holder, whose locking means are activated by a control button (103) mounted on the tool support assembly.

Description

Removable tool support system for food processing for mixers, kitchen robots, grinders and similar devices.

The present invention relates to a system of removable tool holder for product development food for household appliances comprising a base of motor and a container or jug for preparing food, such as Mixers, kitchen robots, grinders and other appliances Similar.

The food processing tool of appliances such as mixers rotate at high speeds, Up to 20,000 rpm In this class of devices, the tool Food processing is subject to a rotating shaft fixed on the bottom of the container or jar, and the container or jar they are attached to the motor base so that they can be removed.

The devices that understand a container or jar that includes a removable tool holder for food processing. US 5 360 176 or FR 1 documents 329 312 describe a mixer jug intended to be installed in separable form in a motor base. A knife holder is attached separably in a bottom part of the mixing vessel, by screw thread means. The knife holder supports a bearing which fixes the central part of an axis that, at its upper extremity, it comprises a blade and at its lower end a coupling capable of being driven by the output motor shaft of the housing the motor. As mixers often comprise a jar that It has a narrow bottom, the removal of the tool holder from Food processing from the container makes cleaning easier of the jar and the part surrounding the tool blades of food processing.

However, in this class of devices, it is often not considered practical to remove the support from Food preparation tool unscrewing it. It can require considerable physical strength, or some parts delicate are prone to break. On the other hand, reassembly of the support by tapping it in the container cannot be very simple, because the support consists of several pieces, and also the fact that the thread entry cannot be seen when the support.

Additionally, the seal used in relation to with a threaded support it has proven to be quite inefficient, well due to the fact that the support had not been threaded what enough, or because the sealing ring is easily damaged when the support is threaded regularly by tightening it too much.

The object of the present invention is to provide a removable tool support system for manufacturing food for household appliances of mixer types, kitchen robots or grinders, comprising a container or jug and a tool support set for developing food, which allows easy removal from a container static the support assembly, or easily remove from a static set support the container.

Another object of the present invention is to provide a removable tool support system for manufacturing food for such household appliances that has a shutter Efficient to prevent leaks.

Another object of the present invention is to provide a removable tool support system for manufacturing food for such household appliances, which includes means of security.

Another object of the present invention is to provide a removable tool support system for manufacturing food for household appliances that allows a complete cleaning of the inside of the appliance container, as well as of the parts of the food processing tool of the support set.

Another object of the present invention is to provide an efficient removable tool holder system food processing for household appliances, but still quite simple and cheap to manufacture.

These goals can be achieved with a food processing apparatus that can be fixed on a base separate that includes an electric motor to form an apparatus electric mixer type or kitchen robot, comprising a container that can be fixed in said base, whose container is associated with a tool holder set for processing of food that has a support removably attached in a opening in the bottom of said container, an axis rotary which is fixed through said support, whose axis supports at one of its ends an application element that can be drive by the electric motor when said vessel is fixed on that base, and on the other end of it it carries a tool of food processing, in which the container comprises interlocking means that move in a plane transverse to the axis of the food processing tool to apply a (or ones) conformation (or conformations) of the tool holder corresponding to when said tool support has been axially coupled in the container and has been supported against a support area provided around the opening of the container, whose interlocking means are operable by a control button mounted on the container, or on the contrary, the tool holder includes the control button and the interlocking means that apply to one (or some) conformation (or conformations) of the container, said axially being applied container in the tool holder.

The movement of the interlocking means in a transverse plane to the tool axis cannot be only a radial translation approaching and separating from said axis, but also a rotational movement of an arm or a pair of arms that form tweezers, or any other combination of Rotation and translation.

Thus, the removal of the container from the tool holder set for food processing, as well as the placement or re-installation in said container of said support set, are very simple, thanks to the fast and safe coupling system, which always guarantees the correct position of the tool holder for processing foods. To remove the tool holder, just act on the button to decouple it axially; and, to install the Clean tool holder or other type of tool, for example an ice crusher, it is enough with push it axially so that it rests against the support of the container and press the control button.

Incidentally, and cooperatively, the conformation (or conformations) of the interlocks is located (or are located) in such a way that there is an effective shutter correct between the tool holder and the container, always properly tightening an O-ring seal, or Too tight, not too loose.

According to a first kind of realization, the interlocking means have been installed in the container. Alternatively, according to a second kind of embodiment, the interlocking means are installed in the set of support.

According to one type of embodiment, the control button is movable between a position locked in which the interlocking means can hold the support of tool against the support area, and a position released in which the interlocking means can release the support of Support zone tool.

According to a preferred type of embodiment, the control button is set against recovery means elastic capable of loading the interlocking means and said control button in the locked position.

Advantageously, the opening is circular, having annul the support area, also being annul the corresponding part of the tool holder, and the conformation (or conformations) of the tool holder, or on the contrary, the conformation (or conformations) of the container, in which the interlocking means apply, it is (are) an annular groove (or ring grooves). That would not require a specific angular orientation. This type of construction facilitates the positioning of the support assembly in the container. Without However, frictional forces in the contact zone between the tool holder and container support area prevent the rotation of the tool holder when the motor drives the tool to rotation.

Advantageously, between the support area and the tool holder is installed a sealing ring. East simple and efficient shutter system also prevents leaks of water and other liquids contained inside the container. Preferably, the sealing ring is fixed in the assembly support tool for food processing or in the container support area.

According to a first embodiment specifically, the interlocking means are constituted by three interlocks, or tabs, regularly spaced around the periphery of the conformation (or conformations).

An exemplary embodiment may comprise a ring button fixed on the underside of the support tool around the bearing, having the outer periphery of said annular pushbutton three regularly spaced cams provided to push respectively in radial interlocks outward fixed at one end of the arm of whose other end it is rotatably fixed on the tool holder against some elastic means. The container then has a groove to annul practiced at the same level as the interlocks when the tool holder is pushed correctly against the container support area.

In a preferred mode of the first embodiment, the interlocking means comprise a belt that surrounds the opening in the bottom of the container, whose belt has a rectilinear section that can cooperate with the control button, with an end interlock provided free of each arm, protruding from said rectilinear section two arms of tweezers, an interlocking being installed in the free end of each arm, whose interlocking means can enter the conformation (or conformations).

According to a second embodiment specifically, in the container means of interlocking comprising an interlocking plate that has an opening formed by a first hole, whose diameter corresponds to the diameter of a reduced cylindrical body of the tool holder, and a second hole, whose diameter is greater than the diameters of said cylindrical body and of an element of application of the tool support set.

Thus, advantageously, the reduced cylindrical body between a conical body of the support tool and the application element, whose conical body is can be adjusted in a through-hole conical hole in the bottom of the container.

According to a third embodiment specifically, the interlocking means comprise tweezers constituted by a pair of arms that rotate in a transverse plane to the axis, the outer end of each arm being subject to rotation  to the periphery of a retaining ring, with the central part conformed as inclined curved interlocks, presenting the inner end a sloping front that forms, with the front inclined from the other arm, a V-shaped profile, and the hoop of retention comprises a pair of spring blades, each of the which presses inward on the inner end of a arm.

In a preferred mode of the third embodiment, on the front of the clamps is arranged a activation slide rod, whose slide rod is extends out of the base of the container using a push button control, said sliding rod having a triangular edge which rests on the inclined part on the front of each interlocking arm

Advantageously, the electrical apparatus comprises also retention means that can prevent any displacement of the control button from the locked position, when the vessel is mounted on the motor base. In consequently, any withdrawal from the set of container support as long as the container remains at the base of the engine. The retention means can be installed in the base of the engine or in the container.

These objectives can also be achieved from according to a fourth specific embodiment with an apparatus of food processing that can be set on a separate basis which includes an electric motor to constitute an electric device of the type mixer, kitchen robot or grinder, which comprises a tool holder set for food processing fixed on said base, whose support assembly has a rotating shaft mounted through said support, whose axis carries in one of its extremes an application element that can be driven by the electric motor when said support assembly is mounted on said base, and at the other end it carries a tool to food processing; and a container that has an opening with an edge that can be fixed in said support assembly, in the that the edge of said opening of the container is held against a support area provided around the tool holder by means of interlocking means fixed in the set of support and that fit in an approximately radial direction with one (or ones) conformation (or conformations) of the container, said interlocking means being activated by a push button control mounted on the support assembly.

According to one type of embodiment, the control button is movable between an interlocked position, in which the interlocking means are able to hold to the support against the support area, and a release position, in which the interlocking means can release to the support of the support area

Advantageously, the opening is circular, being annularly supporting area, also being annular the corresponding part of the container, and the (or) conformation (or conformations) of the container, in which the means are applied interlocking, is (are) a (or a) groove (or grooves) annular (or annular).

Advantageously, in the support assembly of food processing tool a ring has been provided shutter that forms the support area.

Advantageously, the electrical apparatus comprises also retention means capable of preventing any movement of the control button from the locked position when the support assembly is fixed on the motor base. By therefore, any withdrawal of the container from the support set as long as the support set remains in The base of the engine. The retention means can be installed in the motor base or support assembly.

The following describes in more detail the present invention by way of example, with reference and as shown in the accompanying drawings, in which:

Figure 1 is a sectional elevation of an apparatus comprising a removable tool support system for food processing, according to a first embodiment of the invention

Figure 2 is a sectional side view of the lower section of the apparatus vessel shown in Figure 1, showing in more detail the removable support system of tool for food processing, according to the first embodiment of the invention

Figure 3 is a side view of the assembly of tool holder for food processing shown in the Figure 2

Figure 4 is a top view of the section inner bottom of the container shown in Figures 1 and 2, which shows a first position of the removable support system of tool for food processing, in which the system of tool holder for food processing is installed In the container.

Figure 5 is another top view of the section inner bottom of the container shown in Figures 1 and 2, which shows a second position of the removable support system of tool for food processing, in which the set of tool holder for food processing is about be removed

Figure 6 is another top view of the section inner bottom of the container shown in Figures 1 and 2, which shows a third position of the removable support system of tool for food processing, in which it is possible remove the tool holder assembly from the container to food processing.

Figure 7 is a side view of an assembly of support according to a variation of the first embodiment of the invention

Figure 8 is a sectional side view of the bottom section of the container shown in Figure 7, which shows The removable tool support system for processing food, according to said variation of the first embodiment of the invention

Figure 9 is a detailed scale view enlarged from Figure 8, which allows us to better observe the modification contributed by said variation.

Figure 10 is a partial perspective view of an apparatus comprising a removable support system of tool for food processing, according to a second embodiment of the invention.

Figure 11 is a sectional side view of the base part of the container shown in Figure 10, with the tool holder set for food processing out of the bowl

Figure 12 is a sectional side view of the base part of the container shown in Figure 10, with the tool holder set for food processing installed in the container.

Figures 13 and 14 are axial views towards below that illustrate the details of the bottom of the part base of the container shown in Figure 10.

Figures 15 and 16 are respectively a view lateral in section and an axial downward view of the base part of the container of the apparatus comprising a support system Removable tool for food processing according, with a third embodiment of the invention, with the support of tool for food processing outside the container.

Figures 17 and 18 are respectively a view lateral in section and an axial downward view of the base part of the container according to the third embodiment of the invention, with the tool holder for food processing coupled and nestled in the bowl.

Figures 19 and 20 are respectively a view lateral cut and an axial view down from the base part of the container according to the third embodiment of the invention, with the tool holder for unlocking food processing, Ready to be removed from the container.

Figure 21 is a sectional side view of the container and tool holder assembly for food processing set on the motor base of an appliance comprising an example of a removable support system of tool for food processing, according to a fourth embodiment of the invention

Figure 22 is a sectional side view of the tool holder set for food processing and of the container fixed on the motor base of an apparatus that comprises an example of a removable support system of tool for food processing, according to a additional variation of the first embodiment of the invention.

A first example is shown in Figures 1 to 6 of a first embodiment of the invention.

The mixer according to the invention shown in Figure 1 it comprises a motor base 20 that includes a motor electric 21, a container or jug 22 with a top open, and also a lid 23 to close the container 22, said container being fixed on the motor base so removable The container 22 comprises a support assembly 2 of food processing tool that has a support 15 fixed removably in an internal opening 30 made in the bottom of said container, and a rotating shaft 19 fixed through of said support, which carries at one of its ends a coupling which can be operated by electric motor 21 when the container 22 is fixed at the base 20, and at the other end a 24 food processing tool. Tool 24 of food processing comprises two blades 25 inclined towards up and out.

The tool holder set 2 for food processing is held against a flange 14 that it belongs to the container 22 and actuating locking means by a control button 3 (Figure 2) fixed on the container.

Figure 2 shows a sectional side view of the bottom of the container 22 in which the set 2 of tool holder for food processing. In this figure, the container 22 is almost applied to the base 20.

The base 20 comprises an element 9 of coupling that is fixed to the motor shaft and that can be coupled with an application element 18 of the axis 19 which rotates within the internal bearing (not shown) of said set 2 and on the that the blades 25 which rotate with it are fixed. That way, the coupling element 9 and application element 18 form a elastic coupling bushing between the motor shaft and the shaft 19 of the support assembly.

The container 22 comprises an inner skirt 26 surrounded by a strap 11 of flexible material, and a skirt exterior 27 with a through opening that receives push button 3 which protrudes towards the outer side of the container 22, for access of the user. The button 3 is near the base of the container 22. The button 3 is fixed to a rectilinear section 10 of the belt 11, as you can see better in Figures 4 to 6. Push button 3 can be pressed by the user, moving it through the opening mentioned, however, without disassembling it from container 22. In the support 15 an annular groove 4 is practiced. On the side opposite of the rectilinear section 10 of the belt 11 a interlock 7 'having a bevelled bottom edge. The interlock 7 'is housed in groove 4.

Interlocking means of the container 22 in base 20, such as interlocking means of Bayonet thread (not shown). The base 20 also includes a stop 8 career limiter, which can cooperate with the straight section 10 of belt to limit the stroke of the button 3.

The container 22 has around its opening lower inner circular 30 a surrounding flange 14 that sets contact with a sealing ring 12 of deformable material, provided in the support 15. The ring 12 is pressed by the flange 14 while the assembly 2 is correctly installed in the container 22, thereby providing an efficient shutter. Flange 14 forms an annular support area provided in order to receive the sealing ring 12 of support assembly 2.

Figure 3 shows a side view of the support set 2 outside the container 22. The support 15 is a round piece that is hollow and conical in its upper section, forming an open cavity in its lower section where it goes to be the application element (not shown in this figure), the support 15 also has a base flange 28. Around the support 15 an annular groove 5 has been provided open up. The groove 5 is surrounded by a wall 13 which has a beveled outer upper edge. The groove 5 It is intended to accommodate the sealing ring 12. The annular groove 4 intended to accommodate the interlock (not shown in this figure) It is made between the groove 5 and the base flange 28.

Figure 4 shows a top view of the inner bottom section of container 22, showing the assembly mentioned 2 installed in the container 22, represented by a dashed line The blades, the sealing ring, the groove and surrounding wall to make the view more clear. Belt 11 is installed around the inner skirt 26. Belt 11 integrates two curved parts 6 of blade spring, which extend on each side of the rectilinear section 10 fixed to the button 3. The spring parts 6 rest on the inner wall of the outer skirt 27 of the container 22. Preferably, the Spring parts 6 are symmetrical and rest on the inner face of the wall 27 at a distance of about half the diameter inside of the outer skirt.

Near the spring parts 6, protruding of the rectilinear section 10, there are two arms of tweezers 1 of a laminar format. At the free end of each arm has been provided an interlocking 7. The same as interlocking 7 ', each interlock 7 has a bevelled inner bottom edge (not visible in the figures). The spring parts 6 of the belt 11 are interconnected with each other, as explained above, by means of a rectilinear section 10 of belt that forms a piece with they, fastened to button 3 and to the arms of the clamps 1. Preferably, home caliper arm rests on a nerve 29 provided on the inner skirt, and which acts as a point of rotation for the arm. The groove 4 houses the interlocks 7 and 7 ', when the assembly 2 is installed in the container 22.

The operation of the invention with reference to Figures 1 to 6. Figures 4 to 6 show they have omitted the blades, the sealing ring, the groove and the surrounding wall to make the views clearer.

Figure 4 presents a top view of the inner bottom section of container 22, showing the assembly mentioned 2 installed in the container 22 represented with a dashed line Notice how they fit interlocks 7 and 7 'in the aforementioned groove 4, holding firmly in position to set 2.

Figure 5 shows what happens when the user presses button 3 in order to remove from container 22 support set 2. Push button 3 pushes the section belt rectilinear 10, which in turn pushes parts 6 of dock. The spring parts 6 rest on the inner wall of the container 22, and, since said parts are integrated with the belt 11, said parts will cause the belt to open 11. The opening of the belt 11 causes the displacement of the interlock 7 ', which leaves the groove 4 of the set 2. At the same time, the central section of each arm of the clamp 1 is also pressed  against set 2 on nerve 29, causing said arms open, and also moving both interlocks 7 towards the outside of the groove 4.

Figure 6 has just shown the situation of maximum pressure on button 3, when clamps 1 and belt 11 are already completely open, and interlocks 7 and 7 'are they find completely out of the groove 4, thus releasing to set 2 and allowing it to be easily removed from below of the container 22.

Figure 2 helps to understand the function of limit stop 8 provided in base 20 when the container 22 with the set 2 installed has been embedded in the base 20. If the user tries to press button 3, the section Straight belt 10 will come into contact with the stop 8. The deformation of the spring parts 6 and the movement of the arms of the clamp, limiting the displacement of the interlocks 7 and 7 ', thus preventing the release or withdrawal of said set 2. The container 22 must be removed from the base 20 of the apparatus for allow the removal of the support set 2.

Figure 2 also helps to understand the introduction of the support set 2 into the container 22. The support set 2 is introduced axially from bottom to top to through the opening 30 of the bottom of the container 22, and is pushed to your position Thanks to the truncated conical shape of support 15, the support assembly 2 enters the container 22, being pushed and separated the interlocks 7 and 7 'by the edge wall bevel 13. The support assembly 2 stops when the surrounding flange 14 of the container 22 touches the sealing ring 12 and, simultaneously, the interlocks 7 loaded by the arms of the clamps 1 and the interlocking 7 'loaded by the parts 6 of spring enter the groove 4, strongly fixing the assembly 2 to the container 22.

As a variation, the grooving 4 for any type of conformation, including openings, if the opening in the bottom of the container 22 It is not circular. As another variation, interlocks 7 and 7 ' They can enter two or even three different grooves.

Figures 7 to 9 present a second example of The first embodiment of the invention.

Figure 7 is a side view of the 2 'assembly of support separated from the container, not shown. The skips have been omitted blades only to get a simpler graphic. The set 2 'of support is almost completely identical to set 2 of support described above, the support 15 'being formed by the same round hollow part, also having the groove mentioned 4, parallel to the groove 5 ', both surrounding the central section of the lower part of the support 15 '. The 5 'groove, intended to accommodate the 12' sealing ring (not shown in this figure) is an annular groove that has a surrounding bevelled bottom edge and top edge surrounding, and does not have the surrounding wall 13 mentioned previously, this being the only difference between set 2 of support of the first example and the support set 2 'of the second example.

Figure 8 shows a sectional side view of the bottom of the container 22 'which has the 2 'set of support. You can also see that the base 20 'of The engine does not differ from the motor base 20 of the preceding example. The container 22 'presents around its entire inner part a 14 'surrounding flange that has a bevelled inner bottom edge 16. Edge 16 is in contact with an inner upper edge bevel 17 of a sealing ring 12 'made of a material deformable, which presses all the time that the set 2 'of support is installed in the 22 'container, providing that mode an alternative shutter mode, this variation being equally efficient The inner edge of the flange 14 'is adjusted around an outer flange of the support 16 ', and the shutter 12 'is not visible inside the container 22' which has 2 'support set installed. These differences are the unique between the container 22 and the sealing ring 12 of the first example, and the container 22 'and sealing ring 12' of the second example.

Figure 9 shows an enlarged cut of the beveled edge 17 of the sealing ring 12 ', noting that said edge is located next to the outer side and sections 12 'top rings. This view also offers a presentation best of the contact area between the edge 17 and the beveled edge 16 of the surrounding flange 14 ', as well as the groove 5' in the that the sealing ring 12 'is housed.

Figures 10 to 14 show a second embodiment of the invention

Figure 10 is a view of the top of a mixer motor base 40, which has a safety switch 45. Under a removable container 42 a lever 33 is installed. In a part 46 of the base of the vessel 42 a recess 43 has been made. The lever 33 is movable between a first position in which said lever is in recess 43, and a second position 43 'in which the lever 33 It has been turned on and off recess 43.

Figures 11 and 12 are side views in section of the base part 46 of the container 42, showing a plate 37 of interlocking integrated to lever 33. Note that there is a command 58 installed on the end of the lever 33, in order to make Easier handling. The interlocking plate is fixed below a flat bottom of the base part 46 of the container 42. The bottom of the base part 46 has a hole in its center conical intern 34 that widens at the top, which forms an accommodation 48.

A tool holder set 32 for food processing comprises a tool 44 for food processing fixed on a stand 31. Tool 44 for food processing comprises two inclined blades 51 out and up and two blades 52 tilted out  and down alternately adjusted at one end of an axis which rotates in an internal bearing of the support 31. An element 38 of application for coupling with a motor shaft provided in the motor base is installed on the other end of the shaft of the support. The support 31 comprises a conical body 41 having a diameter that increases upwards. A sealing ring 50 is installed at the upper end of the conical body 41 against a upper flange 53. The sealing ring 50 can be made of rubber. The support 31 also comprises a recess like a cylindrical body 47 provided at the lower end of the conical body. The diameter of the cylindrical body 47 is smaller than the lower diameter of the conical body 41. Under said cylindrical body is installed a bottom flange 54 having a diameter greater than the diameter of the cylindrical body 47.

Figure 11 shows the support assembly 32 out of place, that is, with support 31 and blades 51 and 52 not installed in part 46 of the base of the container 42. This Figure shows that when the support assembly 32 is removed from the container 42, said support assembly comes out and separates towards up from the base part 46 through the container 42.

Figure 12 shows the support assembly 32 installed and placed correctly in the base part 46. The conical body 41 fits perfectly in the through conical hole 34 of the base part 46, with the sealing ring 50 inside the housing 48. The conical shape of these pieces and the sealing ring 50 produce a virtually hermetic seal, avoiding Water leaks. The housing 48 forms an annular support zone intended to receive the sealing ring 50 of the support assembly 32. The cylindrical body 47 passes through an opening made in the interlocking plate 37, which holds and holds the support set 32.

Figure 13 is a view illustrating the details of the bottom of the base part 46 of the container 42, showing the interlocking plate 37 integrated with the lever 33, also containing an opening consisting of a hole larger 35 and a smaller hole 36, and a hole 59 practiced in a place near the edge of said plate of interlocking Through the hole 59 passes an axis that can be a rivet, for example, fixed to the base part 46, which constitutes a pivot point Lever 33 is located in the recess 43 and the system is locked in the normal working position, with the smallest hole 36 represented as a shaded area. The mentioned recess built as a cylindrical body has a diameter equal to that of the smallest hole 36. Thus, all the support set 32 that includes the blades is correctly placed. To remove the blades with the support, you must remove lever 33 from recess 43, and move it as indicated with the arrow to rotate the locking plate 37 around the pivot point 49.

Figure 14 is a view showing the details of the bottom of the base part 46, with the lever 33 already displaced in the direction indicated by the arrow located outside recess 43, releasing the switch. This avoids the  accidental activation of the engine, without having installed the container 42, thus allowing the removal of the assembly 32 of support including blades. The interlocking plate 37 has rotated around pivot point 49 and the most hole small 36 has moved, giving way to the larger hole 35, represented in a shaded area. The largest hole 35 has a diameter larger than that of the smallest hole 36, and is capable of release the cylindrical body mentioned that was coupled to the smallest hole 36. The diameter of the largest hole 35 is slightly larger than the maximum diameter of the application element 38 and flange 54 of the bottom of the support assembly, which can pass relatively easily through the larger hole 35 when the support assembly is removed from the base part of top 46 through the inside of the container.

When the support set is installed correctly in the base part 46 of the container 42, the lever 33 is housed in recess 43. Then, when the base part 46 of container 42 has been correctly placed and installed in the motor base 40, lever 33 presses switch 45, which remains activated, allowing engine operation of the mixer. If the container 42 is not placed on the base 40 of the engine, the mixer does not work, since switch 45 it's off. This is a safety factor that prevents operation of the mixer if the support assembly is not correctly installed, or if lever 33 has been broken, or if the container 42 was not installed correctly.

To remove from the container 42 the assembly 32 of support, said container must be removed from the base 40 of the engine. To install the support assembly 32 in the container 42, said container must also be removed from the base 40 of the motor.

In Figures 15 to 20 you can see a third embodiment of the invention

Figure 15 shows the support assembly 62 of tool for food processing out of the jar mixer or other similar household appliance. This support of tool, quite similar to the one described in relation to the second embodiment, comprises a conical body 71 that acts as a  bearing for an internal shaft 69 that has a set of blades 74 at its upper end and an application element 68 in its Lower end. The conical body 71 has an O-ring 80 of rubber around its upper periphery, and has a body cylindrical, or grooved, 77 in its lower periphery.

The device body 85, drawn with lines of strokes, includes a stop 8 stroke limiter and an element 9 of coupling that is fixed to the motor shaft of the device and is the which is coupled to the application element 68 of the shaft 69 of the assembly mentioned 62 tool holder, in order to spin to the blades 74.

The base of the container 72 has a skirt conical inside up 76 with a central conical hole downward passage 64 intended to receive the conical body 71 of the tool holder set 62. The upper periphery of the through conical hole 64 has a housing or seat 78 to receive the sealing ring 80.

More particularly in this embodiment, and as you can see better in Figures 15 and 16, the means of interlocking comprise pliers consisting of a pair of arms 61 that rotate in a plane transverse to axis 69, being Rotating the outer end of each arm to the periphery of a retaining ring 83, the central part having a form of curved interlocks inclined 67 around the vertical axis central, showing the inner end an inclined front that it forms a V with the inclined front of the other arm, the ring 83 of retention comprises a pair of spring blades 66, each of which presses inward on the inner end of a arm.

In front of the clamps a rod is arranged slider 65 activation with a lower display 81, extending this rod outside the base of the container 72 by means of a control button 63. The sliding rod 65 it has a triangular edge 70 that rests on the inclined front of each interlocking arm 61.

Figure 16 shows the tweezers in a position closed due to the pressure of the spring blades 66, being removed the activation rod and its edge triangular. The jug 72 without the support assembly 62 tool cannot be installed on the body 85 of the device because, with the clamps 61 in the closed position, the element 9 of coupling cannot go through it. Although the user continues by pressing button 63, to keep the clamps open, the screen 81 will then collide with the limit stop 8.

With the clamps closed, insertion is possible of tool holder assembly 62 in jar 72 from top down due to the inclined part of the interlocking curved 67 which is pushed to separate by element 68 of application. When you continue pushing down the set 62 tool holder, tapered bearing body 71 gets to rest in the conical hole 64, and the edge internal interlocking of the clamps can be introduced in the groove 77.

Figures 17 and 18 show the apparatus when the tool holder assembly 62 is installed in jar 72, which in turn is properly installed in the body of the device. The inclined interlocks 67 are introduced in the groove 77 of the conical body, holding in position the tool holder Push button 63 is in the position waiting, the triangular edge 70 being pushed by the end inside the arm interlock 61, which in turn is pushed by the spring blades 66.

As the jar or container 72 are installed in the body 85 of the apparatus, if someone tries to press the button 63, its screen 81 will rest against the limit stop 8 preventing its movement, and consequently the withdrawal of assembly 62 of tool holder

Figures 19 and 20 show a sectional view and an axial top view of the tool holder assembly 62 at the moment this set is about to be removed from the container, which has been removed from the base of the apparatus. The jug 72 must be removed from the body of the device, and remove the lid, to have  Access to the food processing tool. So he control button 63 with its screen is free to press it. The triangular edge 70 of the activation rod 65 pushes the two arms 61 separating them to open the clamps. The blades 66 of spring, which rest against the sides of the clamps, exert a force (spring effect) to try to close them. When the Tweezers are open, the edges of the inclined parts of the interlocks leave the grooves 77 of the conical body 71, that is free to remove it.

Figure 21 shows a grinder according to A fourth embodiment of the invention. The apparatus comprises a base 120 including an electric motor (not shown), a set 102 of support and a container 122. The motor drives an element splitter 109 capable of engaging with an application element 118 of the support assembly 102 when said assembly is fixed in said base.

The support assembly 102 comprises a support 115 capable of being removably fixed on the base 120, by fastening means such as interlocking means of bayonet (not shown). A shaft 119 is installed in a bearing internal (not shown) of the central part of support 115. The hitch element 118 is fixed at the lower end of said axis, and a tool 124 for food processing is fixed at the upper end of said axis. The 124 tool for food processing comprises two inclined blades 125 out and down. In a groove 105 open towards above surrounding tool 124 for food processing a sealing ring 112 is installed. A wall 126 extending upwards it surrounds the groove 105. An outer wall 127 that is extends upwards from the support 115 surrounding the wall 126, providing an annular housing 128. A cover 129 closes the upper opening of housing 128.

In housing 128 a strap is installed 111. Belt 111 is similar to belt 11 of the first embodiment, and comprises a section 110 that cooperates with a button Control 103 fixed in a side opening of the outer wall 127, as well as spring parts and pincer arms that have interlocks at its free end. On the belt 11, on the part opposite the control button, an interlock is installed 107 '. The interlocks can be introduced in a groove annular 104 surrounding a side wall 113 of the container 122.

The container 122 has an opening 130 whose edge 114 forms a support area that can settle in the ring shutter 112. The side wall portion 113 surrounding said opening is basically cylindrical. The groove 104 has been practiced near said opening in a part 116 of the wall side 113 having a thickness greater than the rest of said wall side. Between the groove 104 and said opening is installed an outer conical part 117. The end of the container 122 opposite the opening 130 is closed, and the diameter of the container 122 decreases near said closed end.

On the base 120 a stopper 108 is installed career limiter. When support 115 is fixed on the base 120, the limit stop 108 stroke pushes up a pin 100 capable of stopping the displacement of section 110 of the belt 11 when the latter is pushed by the push button 103 of control. Therefore, the removal of the interlocks of the groove 104. Preferably, the pin 100 is fixed against a recovery spring (not shown) on the inside face of support 115.

To operate the grinder, it is introduced the product to be treated in the container 122. Then the support assembly 115 in the open upper part of the container 122. The interlocks are pushed by conical part 117, separating, and then they enter the groove 104. Thus, the edge 114 is held against the sealing ring 112. The set to install it on base 120, and you can start the grinding.

To remove the container, you first have to remove the assembly from the base 120, so that the pin 100 release section 110 of belt 111.

It can also be used with said set of support a container that has a first opening to fix it on the support assembly 102 and an opposite opening thereby you get an appliance such as a mixer, or a robot from kitchen.

As a variation, the groove 104 for any type of conformation, including openings, if the opening 130 formed by the edge 114 of the container 122 is not circular. As another variation, the interlocks 7 and 7 'can be introduced in two or three different grooves.

Figure 22 shows a mixer according with a variation of the first embodiment of the invention, which it comprises the same interlocking system as the example previous.

The apparatus comprises a base 120 that includes a electric motor (not shown), a support assembly 102 'and a container 122 'capable of being held removably in the base 120. The 102 'tool holder assembly for processing food, which has a tool 124 ', is installed in the container 122 '. The tool 124 'comprises two blades 125' tilted out and up, installed at the end upper shaft 119, which rotate in an internal bearing of the support 115 '.

The container 122 'has an inner skirt 131 forming an opening 130 'at the bottom of said container and which has a bottom edge 114 'that can be adjusted against a ring shutter 112 'provided in bracket 115' of assembly 102 'of support. Around the skirt 131 a 104 'outer groove. Between said groove and said opening an outer conical part 117 'is installed. The 103 'push button control and interlocking device that includes the interlock 107 'are fixed on support 115'. A skirt outer 132 of the vessel conceals an activation arm 133 of the control button under bracket 115 'when container 122 ', which has the support assembly 102' installed, is coupled at the base 120. A rib 134 extending from the support 115 ' makes arm drive 133 easier.

As a variation of the third embodiment, it you can install the interlocking system in the set of support.

As an additional variation of the third embodiment, the support assembly can be designed to fix it at the base of the engine.

The following advantages can be achieved with the system proposed herein, as described through the examples:

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the system of Installation of the container support assembly is very reliable to keep the blades in their correct position, even when work with foods that are hard to crush, such as seeds, ice cubes, etc.

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can be washed better and in an easier way the container, even in dishwasher;

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low cost.

Having described some preferred examples, It should be understood that the scope of the present invention covers other possible variations, which are only limited by the content of the attached claims, where possible equivalent.

The tool for food processing it can consist of other kinds of tools, such as a ice crusher or mixer, for example.

Claims (17)

1. A food processing apparatus capable of being mounted on a separate base (20; 20 ';40;85; 120) that includes an electric motor (21) to form an electric appliance of the mixer or kitchen robot type, which it comprises a container (22; 22 ';42;72;122') capable of being mounted on said base, whose container is associated with a set (2; 2 ';32;62;102') of tool holder for processing of food having a support (15; 15 ';31;71;115') removably held in an opening (30; 34; 64; 130 ') made in the bottom of said container, a rotating shaft (19; 69; 119) which is mounted through said support, whose axis is supported at one of its ends in an application element (18; 38; 68; 118) that can be driven by the electric motor when said container is mounted on said base and, at the other end, a tool (24; 44; 74; 124 ') for food processing, characterized in that either the container ( 22; 22 ';42; 72) comprises interlocking means (7; 7 ';37; 67) that move in a plane transverse to the axis of the food processing tool to be applied to one (or ones) conformation (or conformations) (4; 47; 77) of the tool holder (15; 15 ';31; 71) in correspondence when said tool holder has been axially applied to the container and led to rest against an area (14; 14';48;78; 114 ') of support provided around the opening of the container, said interlocking means (7; 7 ';37; 67) being activated by a control button (3; 33; 63) mounted on the container; or the tool support assembly (102 ') comprises interlocking means (107') for applying to one (or some) conformation (or conformations) (104 ') of the container (122') in correspondence when said container has been axially applied to the tool holder, whose locking means are activatable by means of a control button (103 ') mounted on the tool support assembly. 2. A food processing apparatus according to claim 1, characterized in that the control button (3; 33; 63; 103 ') is movable between an interlocked position, in which the means (7; 7';37;67; 107 ') interlocking can hold the tool holder (15; 15';31;71; 115 ') against the support area (14; 14';48;78; 114 '), and a released position , in which the locking means (7; 7 ';37;67;107') can release the tool holder (15; 15 ';31;71;115') from the area tool (14; 14 ';48;78; 114 ') support. 3. A food processing apparatus according to claim 2, characterized in that the control button (3; 63) is fixed against elastic recovery means (6; 66) that can be loaded onto the means (7; 7 '; 67) interlocking and said control button to the locked position. 4. A food processing apparatus according to any one of claims 1 to 3, characterized in that the support area (14; 14 ';48;78;114') is annular, the part being also annular corresponding of the support (15; 15 ';31;71;115') of tool, and in which the conformation (or conformations) (4; 47; 77) of the tool holder, or conversely the conformation (or conformations ) of the container, in which (or the) that the interlocking means is applied (or applied) is (are) one (or one) annular (or annular) groove (or grooves). 5. A food processing apparatus according to any one of claims 1 to 4, characterized in that a sealing ring (12; 12 ';50;80;112') is installed between the area (14; 14 ';48;78; 114 ') support and tool holder (15; 15';31;71; 115 '). A food processing apparatus according to any one of claims 1 to 5, characterized in that the interlocking means are constituted by three interlocks (7: 7 ';107') regularly spaced around the periphery of the conformation (or conformations) (4; 104 '). 7. A food processing apparatus according to claim 6, characterized in that the interlocking means comprise a belt (11) with a section (10) that can cooperate with the control button (3), an interlocking provided ( 7; 107 ') on the opposite part of said section, two arms of pliers (1) protruding from said section, an interlocking (7) being provided at the free end of each arm, whose interlocking means can enter the conformation (or conformations) (4; 104 '). A food processing apparatus according to any one of claims 1 to 5, characterized in that the locking means have been installed in the container and comprise an interlocking plate (37) having an opening formed by a first hole ( 36) whose diameter corresponds to the diameter of a cylindrical body (47) of the tool holder (31), and a second hole (35), whose diameter is larger than the diameters of said cylindrical body and an application element (38) of the tool holder assembly (32). 9. A food processing apparatus according to claim 8, characterized in that the cylindrical body (47) has been installed between a conical body (41) of the support (31) and the application element (38), whose conical body It can be adjusted in a conical through hole (34) in the bottom of the container (42). 10. A food processing apparatus according to any one of claims 1 to 5, characterized in that the interlocking means comprise clamps consisting of a pair of arms (61) which rotate in a plane transverse to the axis, being fixed to rotation. the outer end of each arm to the periphery of a retaining ring (83), the central part being formed as curved inclined interlocks (67), the inner end showing an inclined front that forms, with the inclined front of the other arm, a V-profile, and in which the retaining ring (83) comprises a pair of spring blades (66), each of which presses inwardly on the inner end of an arm. 11. A food processing apparatus according to claim 10, characterized in that a sliding rod (65) is arranged on the front of the clamps, the activation rod of which extends outside the base of the container (72 ) by means of said control button (63), said sliding rod having a triangular edge (70) that rests on the inclined front part of each interlocking arm. 12. An electric appliance of the mixer or kitchen robot type, comprising a food processing apparatus according to any one of claims 2 to 11, characterized in that it also comprises means (8; 43) that can prevent any displacement of the control button (3; 33; 63) from the locked position, when the container (22; 42; 72) is fixed on the motor base (20; 40; 85). 13. A food processing apparatus that can be fixed on a separate base (120) that includes an electric motor to form an electric apparatus of the mixer, kitchen robot or grinder type, comprising a tool holder assembly (102) for food processing that can be mounted on said base, whose support assembly has a rotating shaft (119) fixed through said support, said shaft resting on one of its ends on an application element (118) that can be driven by the electric motor when said support assembly is fixed on said base, and at the other end of it it has a food processing tool (124), and a container (122) having an opening (130) with an edge ( 114) which can be fixed in said support assembly, characterized in that the edge (114) of said opening of the container (122) is held against a support area (112) provided around the food processing tool (124) entos by means of interlocking means (107 ') fixed in the support assembly (102) and which are applied in an approximately radial direction to one (or ones) conformation (or conformations) (104) of the container, whose interlocking means are activatable by a control button (103) fixed on the support assembly (102). 14. A food processing apparatus according to claim 13, characterized in that the control button (103) is movable between an interlocked position, in which the interlocking means (107 ') can hold the container (122) against the support zone (112), and a released position, in which the interlocking means (107 ') can free the container (122) from the support area (112). 15. A food processing apparatus according to any of claims 13 to 14, characterized in that the opening (130) is circular, the support area (112) being annular in shape, the corresponding edge (114) of the container being (122) also annularly, and in which the conformation (or conformations) (104) of the container, in which (or the) the interlocking means is applied (or applied), is (or is) one (or ones) annular groove (or annular grooves). 16. A food processing apparatus according to any of claims 13 to 15, characterized in that the support area (112) is formed by a sealing ring installed in the food support tool holder assembly (102). 17. An electric appliance of the grinder, mixer or kitchen robot type, comprising a food processing apparatus according to any one of claims 14 to 16, characterized in that it also comprises means (108) that can prevent any movement of the control button (103) from the locked position when the support assembly (102) is fixed on the motor base (120).